Table 1 System parameters for numerical analysis
From: Resource reservation for mobile hotspots in vehicular environments with cellular/WLAN interworking
Symbol | Value | Definition |
|---|---|---|
α | 1.3484 | Parameter of sigmoid function for video classification |
β | 5.2924 | Parameter of sigmoid function for video classification |
δ | 1.1 | Scale factor to segment video flows |
f | 30 | Video frame rate (/s) |
g | 3.75 | Video frame burst rate (/s) |
J | 7 | Number of B frames between two key I/P frames |
K | 6 | Number of video classes for traffic modelling |
a | 175.38 | Variance coefficient of aggregate traffic (kbit/s) |
ã | 29.23 | Variance coefficient of aggregate traffic (packets/s) |
H | 0.7 | Hurst parameter |
C L | ~3.0 | One-way channel rate of last-hop WLAN channel (Mbit/s) |
Ï„ | 0.006 | Time unit (s) |
L | 6000 | Transmission packet size (bits) |
p | 0.4424 | Parameter of negative binomial distribution for video batch size A |
r | 2.5812 | Parameter of negative binomial distribution for video batch size A |
σ | 1.4847 | Shape parameter of Gamma distribution for video burst size G (kbits) |
θ | 27.56 | Scale parameter of Gamma distribution for video burst size G (kbits) |